欢迎来到起遇信息学
起遇信息学正处于上线筹建阶段,以下功能已全部开放免费体验: ✅ 完整题库浏览与代码提交评测(C / C++ / Python / Java 等) ✅ 入门到进阶的系列课程试读、作业与考试 ✅ AI 提示、AI 作业分析等智能助教功能 ✅ 赛事模拟与个人能力报告 ✅ 邮箱注册开放 ⏳ 付费课程订阅与微信/支付宝支付通道 ⏳ 手机号登录,微信扫码登录、微信公众号绑定 使用中如遇任何问题,欢迎通过页面底部 **"联系我们"** 与我们沟通。
CF2090A.Treasure Hunt
Treasure Hunt
Little B and his friend Little K found a treasure map, and now they just need to dig up the treasure, which is buried at a depth of meters.
They take turns digging. On the first day, Little B digs; on the second day, Little K. After each day, they switch. Little B digs exactly meters of soil each day, while Little K digs meters. They became curious about who will dig up the treasure first, meaning during whose day the total dug depth will exceed .
But they are too busy digging, so help them and tell who will dig up the treasure!
Input
The first line contains an integer () — the number of test cases. The description of the test cases follows.
In a single line of each test case, three integers are given ().
Output
For each test case, output "NO" if Little B digs it up first; otherwise, output "YES". You can output the answer in any case.
Note
In the first test case, on the first day they will dig meter; on the second day meters in total; on the third day meters; and on the fourth day they will dig meters. Thus, the treasure will be dug up first by Little K.
In the second test case, on the first day they will dig meters; on the second day meters in total; on the third day meters, meaning it was dug up first by Little B.
Samples
3
1 2 4
2 1 4
2 2 1
YES
NO
NO
在线编程 IDE
建议全屏模式获得最佳体验
| 进入全屏编程 | Alt+E |
| 递交评测 | Ctrl+Enter |
| 注释/取消注释 | Ctrl+/ |
| 缩放字体 | Ctrl+滚轮 |